| Literature DB >> 22322943 |
Michel V Hadjihannas1, Dominic B Bernkopf, Martina Brückner, Jürgen Behrens.
Abstract
Wnt/β-catenin signalling regulates cell proliferation by modulating the cell cycle and is negatively regulated by conductin/axin2/axil. We show that conductin levels peak at G2/M followed by a rapid decline during return to G1. In line with this, Wnt/β-catenin target genes are low at G2/M and high at G1/S, and β-catenin phosphorylation oscillates during the cell cycle in a conductin-dependent manner. Conductin is degraded by the anaphase-promoting complex/cyclosome cofactor CDC20. Knockdown of CDC20 blocks Wnt signalling through conductin. CDC20-resistant conductin inhibits Wnt signalling and attenuates colony formation of colorectal cancer cells. We propose that CDC20-mediated degradation of conductin regulates Wnt/β-catenin signalling for maximal activity during G1/S.Entities:
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Year: 2012 PMID: 22322943 PMCID: PMC3321148 DOI: 10.1038/embor.2012.12
Source DB: PubMed Journal: EMBO Rep ISSN: 1469-221X Impact factor: 8.807